Slot machine



FIG. 1 is a front view of a slot machine showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is right side view thereof;

FIG. 6 is back view thereof;

FIG. 7 is an enlarged view, partially in section, of the lower left corner of the playing field; and

FIG. 8 is a sectional view along line 8--8 of FIG. 7. 

The ornamental design for a slot machine, as shown and described. 